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TPS5450DDA
+NomenclatureIC REG BUCK ADJUSTABLE 5A 8SOPWR
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FabricantTexas Instruments
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Pièce fabricant #TPS5450DDA
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Package HSOIC-8
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En stock3871
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Spécifications
| Attribut | Valeur |
| Package | Tube |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 5.5V |
| Voltage-Input(Max) | 36V |
| Voltage-Output(Min/Fixed) | 1.221V |
| Voltage-Output(Max) | 31.32V |
| Current-Output | 5A |
| Frequency-Switching | 500kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
Présentation
Description
The TPS5450DDA is a step-down (buck) voltage regulator from Texas Instruments, designed for high-efficiency power management in various applications. It is part of the SWIFT™ family of DC-DC converters and is capable of delivering up to 5A of continuous output current. The device operates with an input voltage range of 5.5V to 36V, making it suitable for a wide array of applications including distributed power systems, battery-powered equipment, and industrial controls.
Key features of the TPS5450DDA include a fixed switching frequency of 500 kHz, which provides a balance between efficiency and component size, and a voltage regulation accuracy of ±1.5%. The regulator is equipped with an internal compensation network, simplifying the design process. It also offers protection features such as overcurrent protection, thermal shutdown, and an undervoltage lockout.
Packaged in a 8-pin SO PowerPAD™ package, the TPS5450DDA allows for efficient heat dissipation. Its design facilitates ease of use and integration into various systems, making it a versatile choice for designers seeking reliable power conversion solutions.
Key features of the TPS5450DDA include a fixed switching frequency of 500 kHz, which provides a balance between efficiency and component size, and a voltage regulation accuracy of ±1.5%. The regulator is equipped with an internal compensation network, simplifying the design process. It also offers protection features such as overcurrent protection, thermal shutdown, and an undervoltage lockout.
Packaged in a 8-pin SO PowerPAD™ package, the TPS5450DDA allows for efficient heat dissipation. Its design facilitates ease of use and integration into various systems, making it a versatile choice for designers seeking reliable power conversion solutions.
Equivalent
The TPS5450DDA is a step-down (buck) converter from Texas Instruments. Equivalent products from other manufacturers include:
1. LM2675 by Texas Instruments - A similar buck converter with comparable features.
2. MIC4575 by Microchip Technology - Offers similar voltage and current specifications.
3. L4973V5.1 by STMicroelectronics - Another buck converter option with similar functionality.
4. LT1376 by Analog Devices - Provides similar performance in a different package.
Always check the datasheets for detailed specifications to ensure compatibility with your requirements.
1. LM2675 by Texas Instruments - A similar buck converter with comparable features.
2. MIC4575 by Microchip Technology - Offers similar voltage and current specifications.
3. L4973V5.1 by STMicroelectronics - Another buck converter option with similar functionality.
4. LT1376 by Analog Devices - Provides similar performance in a different package.
Always check the datasheets for detailed specifications to ensure compatibility with your requirements.
Features
The TPS5450DDA is a step-down (buck) voltage regulator from Texas Instruments, designed for efficiency and high performance. Key features include:
1. Wide Input Voltage Range: Supports 5.5V to 36V, making it suitable for various applications.
2. Output Current: Capable of delivering a 5A continuous output current.
3. Efficiency: High efficiency of up to 95%, optimizing power consumption and thermal performance.
4. Switching Frequency: Operates at a fixed 500 kHz frequency, enabling the use of smaller external components.
5. Integrated MOSFET: Includes a high-side MOSFET, reducing the need for external components and simplifying design.
6. Soft-Start: Programmable soft-start feature to control inrush current during startup.
7. Protection Features: Provides overcurrent protection, thermal shutdown, and undervoltage lockout for enhanced reliability.
8. Adjustable Output Voltage: Allows for adjustable output voltage using external resistors.
9. Package: Offered in a thermally enhanced 8-pin SO PowerPAD package, aiding heat dissipation.
These features make the TPS5450DDA suitable for a wide range of applications, including consumer electronics, telecommunications, and industrial power systems.
1. Wide Input Voltage Range: Supports 5.5V to 36V, making it suitable for various applications.
2. Output Current: Capable of delivering a 5A continuous output current.
3. Efficiency: High efficiency of up to 95%, optimizing power consumption and thermal performance.
4. Switching Frequency: Operates at a fixed 500 kHz frequency, enabling the use of smaller external components.
5. Integrated MOSFET: Includes a high-side MOSFET, reducing the need for external components and simplifying design.
6. Soft-Start: Programmable soft-start feature to control inrush current during startup.
7. Protection Features: Provides overcurrent protection, thermal shutdown, and undervoltage lockout for enhanced reliability.
8. Adjustable Output Voltage: Allows for adjustable output voltage using external resistors.
9. Package: Offered in a thermally enhanced 8-pin SO PowerPAD package, aiding heat dissipation.
These features make the TPS5450DDA suitable for a wide range of applications, including consumer electronics, telecommunications, and industrial power systems.
Pinout
The TPS5450DDA is a step-down (buck) DC-DC converter from Texas Instruments. It comes in an 8-pin SO PowerPAD package. Here is a brief overview of its pin functions:
1. VIN (Pin 1): Input voltage pin. It accepts a voltage range typically from 5.5 V to 36 V.
2. BOOT (Pin 2): Bootstrapped gate drive for the high-side FET.
3. VSENSE (Pin 3): Feedback voltage sense pin. It connects to the output voltage feedback divider.
4. COMP (Pin 4): Compensation pin for the internal error amplifier. It is used to stabilize the control loop.
5. EN (Pin 5): Enable pin. A high logic level enables the device, while a low logic level disables it.
6. SS/ SD (Pin 6): Soft-start and shutdown pin. It controls the soft-start period to limit inrush current.
7. GND (Pin 7): Ground pin.
8. PH (Pin 8): Phase node. It connects to the inductor and provides the switching output.
The TPS5450 is designed for voltage regulation in various applications, offering high efficiency and an integrated FET for easy design.
1. VIN (Pin 1): Input voltage pin. It accepts a voltage range typically from 5.5 V to 36 V.
2. BOOT (Pin 2): Bootstrapped gate drive for the high-side FET.
3. VSENSE (Pin 3): Feedback voltage sense pin. It connects to the output voltage feedback divider.
4. COMP (Pin 4): Compensation pin for the internal error amplifier. It is used to stabilize the control loop.
5. EN (Pin 5): Enable pin. A high logic level enables the device, while a low logic level disables it.
6. SS/ SD (Pin 6): Soft-start and shutdown pin. It controls the soft-start period to limit inrush current.
7. GND (Pin 7): Ground pin.
8. PH (Pin 8): Phase node. It connects to the inductor and provides the switching output.
The TPS5450 is designed for voltage regulation in various applications, offering high efficiency and an integrated FET for easy design.
Manufacturer
The TPS5450DDA is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. These products are used in a wide array of electronic devices, making TI one of the top semiconductor companies globally. They serve industries such as automotive, industrial, personal electronics, communications, and enterprise systems. TI is particularly known for its analog chips and embedded processors, and its products are essential components in many applications, ranging from consumer electronics to complex industrial systems.
Application
The TPS5450DDA is a DC-DC buck converter commonly used in various applications requiring efficient power management. Key application areas include power supplies for industrial equipment, telecommunications, automotive electronics, and consumer electronics. It's ideal for distributed power systems, battery-powered systems, and point-of-load power regulation. Its capability to provide a stable output voltage from a wide input voltage range makes it suitable for microcontrollers, DSPs, and FPGAs. Additionally, its compact design and thermal performance are beneficial in space-constrained applications.
Package
The TPS5450DDA is packaged in an 8-pin SO PowerPAD (DDA) package. This type of package is designed to enhance thermal performance and allow for efficient heat dissipation in power management applications.
